1947

6.6

1970

6.8

1957

5.5

2016

6.0

2017

6.4

2002

5.3

1983

6.7

2023

6.2

2003

7.0

1999

5.7

1974

5.1

2003

4.2

2005

3.9

2015

6.2

1991

0.0

2017

3.5

2015

0.0

1965

6.3

2017

6.3

2017

5.7